Chemical Replenishment; Maintenance - Makita BVF104 Instruction Manual

• If spray splutters, or pumps suddenly screeches, the
chemical tank is empty, so immediately turn sprayer
switch OFF.
• Do not spray with the battery cover open and/or with
the back-support cushioning removed, as there is a risk
of damage to electrical system. Moreover, do not point
the spray nozzle at the sprayer and spray.
• Do not forcibly handle the lever cock and/or the spray
pipe.
Mixing chemical
CAUTION:
• Never use Kelthane water dispersible powder
(acaricide) because it tends to harden due to heat
generated by pump during operation, which causes the
pump to stop. Use a Kelthane emulsion, Akar emulsion
or Osadan water dispersible powder as the acaricide.
• When using a water dispersible powder or lime sulfur,
be sure to dissolve well prior to use.
• Take maximum care when handling chemicals. Wash
away thoroughly if chemical comes into contact with
body.
• Chemicals are harmful. Always adhere to chemical
manufacturer instructions when handling chemicals.
• See chart below for ratio information that is useful
when diluting chemicals.
• When using a water dispersible powder, etc., dissolve
thoroughly in a container such as a bucket.
Chemical
Water
4 L 8 mL
6 L 12 mL
8 L 16 mL
10 L 20 mL
12 L 24 mL
15 L 30 mL

Chemical replenishment

WARNING:
• When changing chemical, be sure to carefully wash the
tank, pump, and nozzle, etc. with clean water. Residue
of the previous chemical may cause a spray injury.
Moreover, if chemicals mix, a chemical change may
occur, with the danger of generating a toxic gas.
• Be sure to wear protective gloves.
• Do not change chemical in poorly ventilated locale.
(prevent chemical poisoning)
Check to make sure the sprayer switch is OFF and
replenish chemical tank with mixed chemical.
When filling tank with chemical, always strain chemical
through equipped tank strainer.
The side of the chemical tank is marked with scale
divisions, so be sure to use these as operation guidelines.
Firmly tighten chemical tank lid to prevent leaking.
Back strap adjustment
Adjust back strap to a length that brings the sprayer as
close to the body as feasibly possible.
8
Dilution ratio
500 1,000
4 mL
6 mL
8 mL
10 mL
12 mL
15 mL
Lengthening strap
(1) Lift up buckle.
(2) Pull the belt on the side connected to the sprayer.
(Fig. 6)
Shortening strap
Pull the belt on the free side. (Fig. 7)
NOTE:
When shortening the strap, it will move relatively easily if
there is no weight exerted on the strap.

MAINTENANCE

CAUTION:
• Always be sure that the tool is switched off and the
battery cartridge is removed before attempting to
perform inspection or maintenance.
• For inspection and maintenance, always wear
protective gloves.
After-use maintenance
• After use, remove residual liquid from chemical tank,
and wash away clinging chemical from inside of tank
using clean water.
• Now fill up chemical tank with clean water and run the
sprayer for 2 to 3 minutes to wash out residual
chemical from the pump, hose, and nozzle, etc.
• Remove the residual liquid from inside the chemical
tank, restart the pump, and run the sprayer until
residual liquid ceases to come out of the nozzle, and
then turn sprayer switch OFF.
2,000
• Wipe away moisture and dirt from equipment, and then
check for damage and leaks.
2 mL
3 mL
Daily checks
4 mL
• Before work, check to see whether or not fastened
5 mL
units are loose and components are missing.
• Check to make sure the spray hose is not cracked,
6 mL
worn and/or damaged.
7.5 mL
• After use, always be sure to wipe dirt off of exterior,
and to check for damage and/or leaks.
Cleaning water absorption strainer
(Fig. 8)
After removing chemical from tank, remove the water
absorption strainer at the bottom of the tank, and clean it.
Cleaning lever cock strainer (Fig. 9)
Remove lever cock cap and clean strainer.
NOTE:
Water absorption strainer
• This is a filter used to prevent dirt and dust (that for
some reason has got passed the tank strainer into the
tank) from getting into the pump. If the water absorption
strainer becomes blocked, spraying will deteriorate,
and there is a risk of the pump being adversely
affected.
Lever cock strainer
• Spraying deteriorates if the lever cock strainer
becomes blocked.
Sprayer storage
• Wash the equipment using the after-use maintenance
procedures.